Cold pilger rolling mill and method for forming a tube shell to a tube

A cold pilger rolling mill for forming a tube shell to a tube with a pair of rolls that are rotatably attached to a roll stand and with a roll mandrel as a tool, the cold pilger rolling mill comprising:

• a feed clamping carriage for receiving the tube shell;
• a drive for the feed clamping carriage arranged to move the feed clamping carriage during operation of the cold pilger rolling mill such that the tube shell moves step-by-step in a direction of the tool;
• and
• a control and a sensor for detecting a measure for a force exerted during operation of the cold pilger rolling mill by the tool onto the tube shell,
• wherein the control is connected to the drive and the sensor,
• wherein the control is arranged to regulate, during operation of the cold pilger rolling mill, a step length per advance step with which the drive moves the feed clamping carriage onto the tool as a function of the measure for the force,
• wherein the sensor is a position sensor that detects an actual position of the feed clamping carriage,
• wherein the control is arranged to compare the actual position of the feed clamping carriage detected by the sensor with a nominal position of the feed clamping carriage, and
• wherein a difference between the actual position and the nominal position is a measure of the force exerted during operation of the cold pilger rolling mill by the tool onto the tube shell.